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Cc whats up_with_global_warming


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Cc whats up_with_global_warming

  1. 1. What is global warming?
  2. 2. How Global Warming Works Carbon Dioxide (CO2) Fossil fuels (coal, oil, natural gas)
  3. 3. Example of the Greenhouse Effect The Sun’s energy passes through the car’s windshield.This energy (heat)is trapped insidethe car and cannotpass back throughthe windshield,causing the insideof the car to warmup.
  4. 4. What’s the differencebetween “global warming” and “climate change”?
  5. 5. DifferenceGLOBAL WARMING CLIMATE CHANGE is the increase of the is a broader term that Earth’s average refers to long-term surface temperature changes in climate, due to a build-up of including average greenhouse gases in temperature and the atmosphere. precipitation.
  6. 6. Effects of Global Warming Rising Sea Level Increased Temperature Habitat Damage and Changes in Water Supply
  7. 7. What’s the proof thatglobal warming is taking place?
  8. 8. Portage Glacier • Alaska 1914 2004Photos: NOAA Photo Collection and Gary Braasch –
  9. 9. Colorado River• Arizona June 2002 Dec 2003
  10. 10. Why is global warming happening?
  11. 11. Burning of Fossil Fuels Pollution from coal, natural gas, and oil
  12. 12. When did globalwarming start?
  13. 13. Global Atmospheric Concentration of CO2
  14. 14. How is global warming measured?
  15. 15. Ice Core DataCO2 Measurements Before 1958 - Antarctica
  16. 16. CO2 Atmospheric MeasurementsCO2 Measurements Since 1958 – Mauna Loa, Hawaii
  17. 17. 1000 Years of CO2 and Global Warming Temperature (Northern Hemisphere) CO2 ConcentrationsDegree Celsius Increase Parts Per Million 1000 1200 1400 1600 1800 2000 1000 1200 1400 1600 1800 2000 Year Year
  18. 18. Global Warming:Shifting Gears
  19. 19. nob a C r Goal: Reductions inoT c rt e M o s nolli B 2007 CO2 Per Year i f i
  20. 20. Our Goal Produce electricity efficientlynob a C Use electricity r efficiently Vehicle efficiency Solar and Wind Power Biofuels Carbon captureoT c rt e Mnobr a ClnioB g G Reductions and storage f o s no l t a i 2007 in CO2 i Per Year i
  21. 21. What’s being done now to reduce our emissions?Wind Power Solar Power Fuel-Efficiency
  22. 22. What can you do to help solve the problem?
  23. 23. Simple Things To Do Turn off your computer or the TV when you’re not using it.Take shorter showers. Heating water uses energy. Keep rooms cool by closing the blinds, shades, or curtains.Turn off the lights when you leave a room. Use compact fluorescent bulbs.
  24. 24. Be Bulb Smart—Use CFLs What’s the Compact Incandescent difference? Fluorescent 500 lbs. of coal •1,430 lbs. CO2 pollution avoided •$30 saved
  25. 25. Simple Things To Do Dress lightly when it’s hot instead of turning up the air conditioning. Or use a fan.Dress warmly when it’s cold instead of turningup the heat. Offer to help your parents keep the air filters on your AC and furnace clean.Walk short distances instead of asking for aride in the car. Plant a tree. Recycle.
  26. 26. © National Wildlife Federation, 2007